/* ============================================================
 * 师兄工具箱 · 功能页统一样式 tool.css
 * 所有功能页共用这套样式：改这里，全站功能页统一生效
 * ============================================================ */
*{box-sizing:border-box;margin:0;padding:0;font-family:system-ui}
body{background:linear-gradient(180deg,#0b1026 0%,#141a44 40%,#1a1246 100%);color:#dfe6ff;padding:16px 16px 100px}
.wrap{max-width:650px;margin:0 auto}

/* 顶部：返回 + 标题 */
.hd{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.hd .t{font-size:16px;font-weight:bold}
.hd .back{color:#9aa7d6;font-size:13px;text-decoration:none;margin-right:auto}

/* 上传 */
.upload{border:2px dashed #445577;border-radius:10px;padding:12px 14px;text-align:center;
  font-size:14px;color:#cfd8e8;cursor:pointer;display:inline-block;margin-bottom:12px}
.upload input{display:none}

/* 画布预览 */
.preview{position:relative;width:100%;background:#000;border-radius:10px;display:inline-block;overflow:hidden}
#cv{display:block;touch-action:none}
/* 透明画布棋盘格（仅显示，导出不带） */
.cv-checker{background-color:#f7f8fa;background-image:
  linear-gradient(45deg,#eceef1 25%,transparent 25%,transparent 75%,#eceef1 75%),
  linear-gradient(45deg,#eceef1 25%,transparent 25%,transparent 75%,#eceef1 75%);
  background-size:40px 40px;background-position:0 0,20px 20px}

/* 控件行 */
.ctrl{margin-top:12px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:nowrap}
.row label{font-size:14px;color:#cfd8e8;white-space:nowrap}
.row input{width:60%;max-width:650px;padding:8px 10px;background:rgba(255,255,255,0.04);border:1px solid rgba(140,160,255,0.25);color:#fff;border-radius:8px;font-size:15px}
.applyBtn{padding:8px 16px;background:#6366f1;color:#fff;border:none;border-radius:8px;font-size:15px;white-space:nowrap;cursor:pointer}

/* 面板通用（文字/调色等） */
.panel{margin-top:16px;padding:15px;background:rgba(255,255,255,0.04);border-radius:10px;border:1px solid rgba(140,160,255,0.12)}
.tp-row{display:flex;gap:10px;margin-bottom:10px;align-items:center;flex-wrap:wrap}
.tp-label{font-size:13px;color:#cfd8e8;min-width:52px;flex-shrink:0}
.tp-input,.tp-select{flex:1;padding:7px 10px;background:rgba(255,255,255,0.04);border:1px solid rgba(140,160,255,0.25);color:#fff;border-radius:6px;font-size:14px}
.tp-input{min-width:120px}
.tp-range{flex:1;min-width:100px}
.tp-val{font-size:12px;width:40px;text-align:right;color:#aaa;flex-shrink:0}

/* 颜色选择格 */
.color-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:4px;width:100%;margin-top:4px}
.c-btn{height:24px;border-radius:4px;border:2px solid #445577;cursor:pointer}
.c-btn.active{border-color:#fff;transform:scale(1.1)}

/* 开关 */
.switch{display:flex;gap:15px;margin:10px 0;flex-wrap:wrap}
.switch label{display:flex;align-items:center;gap:4px;font-size:13px;color:#cfd8e8;cursor:pointer}

/* 特效按钮组 */
.fx{margin-top:14px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.fx button{padding:11px;border:none;border-radius:8px;font-size:14px;cursor:pointer;background:rgba(255,255,255,0.06);color:#fff}
.fx button.on{background:#ff7800;color:#000;font-weight:bold}

/* 下载按钮 */
.dl{margin-top:14px;display:flex;gap:10px}
.dl button{flex:1;padding:12px;border:none;border-radius:10px;font-size:15px;font-weight:bold;color:#fff;cursor:pointer}
.dl .jpg{background:#ca8a04}.dl .png{background:#16a34a}

/* 提示 */
.hint{font-size:12px;color:#9aa7d6;margin-top:10px;line-height:1.6}

/* 确认弹窗 */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal.show{display:flex}
.box{background:rgba(255,255,255,0.04);border:1px solid rgba(140,160,255,0.12);border-radius:12px;padding:18px;width:100%;max-width:650px;text-align:center}
.box h3{margin-bottom:10px;font-size:17px}
.box p{margin-bottom:14px;color:#cfd8e8;font-size:14px}
.btn-row{display:flex;gap:10px}
.btn-row button{flex:1;padding:10px;border:none;border-radius:8px;font-size:15px;cursor:pointer}
.cancel{background:#384b68;color:#fff}
.ok{background:#ff7800;color:#000}

/* 裁切框（裁切页用） */
#crop{position:absolute;border:2px solid #ff7800;box-shadow:0 0 0 9999px rgba(0,0,0,.4);cursor:move;touch-action:none;z-index:30}
.crop-tip{position:absolute;top:4px;left:4px;background:#ff7800;color:#000;padding:2px 6px;font-size:13px;border-radius:3px;display:none;z-index:10;pointer-events:none}
.crop-edge{position:absolute;z-index:31;touch-action:none;background:rgba(255,120,0,.22)}
.crop-edge[data-pos="t"]{top:0;left:0;right:0;height:20px;cursor:ns-resize}
.crop-edge[data-pos="b"]{bottom:0;left:0;right:0;height:20px;cursor:ns-resize}
.crop-edge[data-pos="l"]{left:0;top:0;bottom:0;width:30px;cursor:ew-resize}
.crop-edge[data-pos="r"]{right:0;top:0;bottom:0;width:30px;cursor:ew-resize}

/* 底部导航 */
.bottom-nav{position:fixed;left:0;right:0;bottom:0;display:flex;background:linear-gradient(180deg,rgba(26,18,70,.55),rgba(26,18,70,.95));
  backdrop-filter:blur(12px);border-top:1px solid rgba(120,140,255,0.15);box-shadow:0 -2px 8px rgba(0,0,0,.25);padding:8px 0;z-index:9999;max-width:650px;margin:0 auto}
.nav-item{flex:1;text-align:center;text-decoration:none;color:#ffffff;font-size:13px}
.nav-item.active{color:#4285ff}
.nav-item .icon{font-size:22px;display:block;margin-bottom:3px}